CN2829775Y - Medical 3-way valve - Google Patents
Medical 3-way valve Download PDFInfo
- Publication number
- CN2829775Y CN2829775Y CN 200520009639 CN200520009639U CN2829775Y CN 2829775 Y CN2829775 Y CN 2829775Y CN 200520009639 CN200520009639 CN 200520009639 CN 200520009639 U CN200520009639 U CN 200520009639U CN 2829775 Y CN2829775 Y CN 2829775Y
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- CN
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- Prior art keywords
- valve
- spool
- way
- passage
- medical
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000003814 drug Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000003745 diagnosis Methods 0.000 abstract description 3
- 208000015181 infectious disease Diseases 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 3
- 238000002560 therapeutic procedure Methods 0.000 abstract 1
- 210000001124 body fluid Anatomy 0.000 description 4
- 210000001175 cerebrospinal fluid Anatomy 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000010839 body fluid Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 238000001949 anaesthesia Methods 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 238000007913 intrathecal administration Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
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Abstract
The utility model relates to a medical three-way valve, which comprises a three-way body with a medicine inlet passage, a liquid-draining detection passage and a liquid-passing passage communicated with each other, wherein a control valve is arranged on the three-way body. The control valve is a valve cavity which is arranged on the three-way body and is communicated with the liquid-passing passage, the medicine inlet passage and the liquid-draining detection passage; the valve cavity is composed of a three-way body or is surrounded by the three-way body and a cover body; the shape of the valve cavity is matched with the shape of a valve core movably positioned in the valve cavity. Two relative sides of the valve core are respectively provided with a concentric valve rod; the two valve rods penetrate through the three-way body; the end part of one valve rod is provided with a valve handle; the end part of the other valve rod is provided with an axial limiting piece. A flow-passing passage corresponding to passage ports of the liquid-passing passage, the medicine inlet passage and the liquid-draining detection passage is arranged on the valve core. The utility model has the advantages of simple structure, convenient operation, low cost, strong safety, wide range of application, etc. When applied in medical diagnosis and therapy, the medical three-way valve not only can evidently reduce the possibility of patient infection, but also can remarkably reduce operators' labor intensity.
Description
(1), affiliated technical field
This utility model relates to a kind of medical equipment, particularly a kind of three-way valve that is used in medical care precess and the treatment.
(2), technical background
Existing medical three-way valve generally is that a three-way body is provided with control valve, and this control valve is two check valves that passage is provided with respectively at three-way body.This medical three-way valve exists the deficiency of complex structure, troublesome poeration, and as a rule, make the check valve conducting, must overcome the back stretch of check valve itself, therefore, in passage, must have and satisfy certain pressure and could use, this gives in operation and the clinical use and brings great inconvenience, this must limit its scope of application, as not being applied in the cerebrospinal fluid displacement art, its reason is that the pressure of cerebrospinal fluid differs makes the check valve conducting surely, especially under the situation of low intracranial pressure.In CN2652410Y, disclose one piece of name and be called " medical threeway pump ", it includes syringe, conduit, joint, also be provided with three-way valve, three-way valve connects syringe and feed liquor conduit respectively, goes out fluid catheter by joint, feed liquor conduit and go out the fluid catheter other end and also be respectively equipped with joint.Three-way valve essence wherein is a two-way valve, the one, and syringe and go out the fluid catheter conducting is discharged body fluid from syringe through liquid outlet channel, and another is syringe and the conducting of feed liquor conduit, extracts body fluid from focus out, perhaps injects medicine to focus.Though it is simple in structure, security performance good, but, because its injection and extracting bodily fluid all are to be undertaken by the feed liquor conduit, discharging body fluid is to be undertaken by going out fluid catheter, do not meet very much medical worker's operating habit, still the problem of pollution, repetitive operation can occur increasing, therefore, operate still safe inadequately, easy.
(3), summary of the invention
The purpose of this utility model just provide a kind of simple in structure, easy to operate, with low cost, make easy, high safety and medical three-way valve applied widely, it is used in medical diagnosis and the treatment, not only patient infection's probability can be reduced significantly, labor intensity of operating personnel can also be reduced significantly.
The purpose of this utility model is to realize by such technical scheme, it includes medicine passage into, discharge opeing sense channel, crosses the three-way body that the liquid passage communicates with each other, three-way body is provided with control valve, it is characterized in that: control valve is that three-way body is provided with and the valve pocket of crossing the liquid passage, advancing the medicine passage, the discharge opeing sense channel communicates, this valve pocket is made of three-way body, and perhaps this valve pocket is surrounded with lid by three-way body; The shape of valve pocket matches with the shape of the spool that is positioned at valve pocket versatilely, the both sides that spool is relative are respectively arranged with concentric valve rod, two valve rods all pass three-way body, the end of a valve rod is provided with valve handle, another valve rod end is provided with axial limiting spare, be provided with on the spool one with cross the liquid passage, advance the corresponding flow channels in passway of medicine passage, discharge opeing sense channel.
Because the shape of valve pocket and the shape of spool mate with each other, therefore the contact surface of spool of the present utility model and valve pocket forms sealing surface automatically.This utility model is work like this: it has two duties, the one: rotate valve handle, drive valve core rotation through valve rod, make the flow channels on the spool be communicated with liquid passage, discharge opeing sense channel, at this moment, cross the liquid passage and be communicated with, and cross the liquid passage and advance the medicine passage obstructed with the discharge opeing sense channel; The 2nd: in like manner, rotate valve handle, make flow channels be communicated with the liquid passage, advance the medicine passage, at this moment, cross the liquid passage and advance the medicine channel connection, and cross the liquid passage and the discharge opeing sense channel obstructed.This device clinical practice is extensive, as: cerebrospinal fluid displacement, administration of anaesthesia, intrathecal injection etc.In practical operation, only rotate valve handle as required, can adjust passage, thereby reach purpose easy and simple to handle.
Owing to adopted technique scheme, the utlity model has simple in structure, easy to operate, with low cost, make easy, high safety and advantage such as applied widely, it is used in medical diagnosis and the treatment, not only patient infection's probability can be reduced significantly, labor intensity of operating personnel can also be reduced significantly.
(4), description of drawings
Description of drawings of the present utility model is as follows:
Fig. 1 is the structural representation of first kind of embodiment of this utility model;
Fig. 2 is first kind of situation of A-A cutaway view among Fig. 1;
Fig. 3 is second kind of situation of A-A cutaway view among Fig. 1;
Fig. 4 is the third situation of A-A cutaway view among Fig. 1;
Fig. 5 is the surface structure sketch map of Fig. 1;
Fig. 6 is the structural representation of second kind of embodiment of this utility model;
Fig. 7 is a B-B cutaway view among Fig. 6;
Fig. 8 is the structural representation of the third embodiment of this utility model;
Fig. 9 is a C-C cutaway view among Fig. 8.
Among the figure: 1. advance the medicine passage; 2. discharge opeing sense channel; 3. cross the liquid passage; 4. three-way body; 5. lid; 6. spool; 7. valve rod; 8. valve rod; 9. valve handle; 10. axial limiting spare; 11. flow channels; 12. sealing ring; 13. limiting stand; 14. limiting stand; 15. spacer pin; 16. cross liquid bath; 17. coronalplane; 18. notched circle; 19. hole; 20. spring.
(5), the specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Shown in Fig. 1,6 or 8, this utility model includes medicine passage 1 into, discharge opeing sense channel 2, crosses the three-way body 4 that liquid passage 3 communicates with each other, three-way body 4 is provided with control valve, it is characterized in that: control valve is that three-way body 4 is provided with and the valve pocket of crossing liquid passage 3, advancing medicine passage 1, discharge opeing sense channel 2 communicates, this valve pocket is made of three-way body 4, and perhaps this valve pocket is surrounded with lid 5 by three-way body 4; The shape of valve pocket matches with the shape of the spool 6 that is positioned at valve pocket versatilely, spool 6 relative both sides are respectively arranged with concentric valve rod 7,8, two valve rods 7,8 all pass three-way body 4, the end of a valve rod 7 is provided with valve handle 9, another valve rod 8 ends are provided with axial limiting spare 10, be provided with on the spool 6 one with cross liquid passage 3, advance the corresponding flow channels 11 in passway of medicine passage 1, discharge opeing sense channel 2.
Because the shape of valve pocket and the shape of spool 6 mate with each other, spool 6 therefore of the present utility model forms sealing surface automatically with the contact surface of valve pocket.This utility model is work like this: it has two duties, the one: rotate valve handle 9, driving spool 6 through valve rod 7 rotates, make the flow channels 11 on the spool 6 be communicated with liquid passage 3, discharge opeing sense channel 2, at this moment, cross liquid passage 3 and be communicated with, and cross liquid passage 3 and advance medicine passage 1 obstructed with discharge opeing sense channel 2; The 2nd: in like manner, rotate valve handle 9, make flow channels 11 be communicated with liquid passage 3, advance medicine passage 1, at this moment, cross liquid passage 3 and advance medicine passage 1 and is communicated with, and mistake liquid passage 3 and discharge opeing sense channel 2 are obstructed.This device clinical practice is extensive, as: cerebrospinal fluid displacement, administration of anaesthesia, intrathecal injection etc.In practical operation, only rotate valve handle as required, can adjust passage, thereby reach purpose easy and simple to handle.
Shown in Fig. 2,7,9, the shape of spool 6 can be cylindric.As shown in Figure 3, the shape of spool 6 also can be round table-like; In order to make spool 6 be adjacent to three-way body 4, be with spring 20 on the valve rod 8, the two ends of spring 20 are against respectively on three-way body 4, the locating part 10.As shown in Figure 4, the shape of spool 6 can also be spherical.
Shown in Fig. 2,3,4,7,9,, be provided with sealing ring 12 between the contact surface of spool 6 and three-way body 4 in order to strengthen sealing property of the present utility model.
As shown in Figure 5, in order to limit valve handle 9 slewing areas, when making the operator rotate valve handle 9, can promptly and accurately control liquid passage 3 and advance medicine passage 1 or discharge opeing sense channel 2 is communicated with, be provided with rotary stopper mechanism between three-way body 4 or lid 5 and the valve rod 7, this rotary stopper mechanism is provided with two limiting stands 13,14 at three-way body 4 or lid 5, and valve rod 7 is provided with and two limiting stands, 13,14 corresponding spacer pins 15.
Shown in Fig. 1,2,3,4, flow channels 11 is that liquid bath 16 was set on spool 6, and this cross section of crossing that liquid bath 16 makes spool 6 is a coronalplane 17.
As shown in Figure 6, flow channels 11 is that liquid bath 16 was set on spool 6, and this cross section of crossing that liquid bath 16 makes spool 6 is notched circle 18.
As shown in Figure 8, flow channels 11 is holes 19 that a break-through spool 6 is set on spool 6, and the mouth of this hole 19 and mistake liquid passage 3, the passway of advancing medicine passage 1, discharge opeing sense channel 2 are corresponding.
Claims (9)
1. medical three-way valve, include medicine passage (1) into, discharge opeing sense channel (2), cross the three-way body (4) that liquid passage (3) communicates with each other, three-way body (4) is provided with control valve, it is characterized in that: control valve is that three-way body (4) is provided with and the valve pocket of crossing liquid passage (3), advancing medicine passage (1), discharge opeing sense channel (2) communicates, this valve pocket is made of three-way body (4), and perhaps this valve pocket is surrounded with lid (5) by three-way body (4); The shape of valve pocket matches with the shape of the spool that is positioned at valve pocket versatilely (6), the relative both sides of spool (6) are respectively arranged with concentric valve rod (7,8), two valve rods (7,8) all pass three-way body (4), the end of a valve rod (7) is provided with valve handle (9), another valve rod (8) end is provided with axial limiting spare (10), be provided with on the spool (6) one with cross liquid passage (3), advance the corresponding flow channels in passway (11) of medicine passage (1), discharge opeing sense channel (2).
2. medical three-way valve as claimed in claim 1 is characterized in that: the shape of spool (6) is cylindric.
3. medical three-way valve as claimed in claim 1 is characterized in that: the shape of spool (6) is round table-like.
4. medical three-way valve as claimed in claim 1 is characterized in that: the shape of spool (6) is spherical.
5. medical three-way valve as claimed in claim 1 is characterized in that: be provided with sealing ring (12) between the contact surface of spool (6) and three-way body (4).
6. medical three-way valve as claimed in claim 1, it is characterized in that: be provided with rotary stopper mechanism between three-way body (4) or lid (5) and the valve rod (7), this rotary stopper mechanism is provided with two limiting stands (13,14) at three-way body (4) or lid (5), and valve rod (7) is provided with and two limiting stands (13,14) corresponding spacer pins (15).
7. as claim 2,3 or 4 described medical three-way valve, it is characterized in that: flow channels (11) is that liquid bath (16) was set on spool (6), and this cross section of crossing that liquid bath (16) makes spool (6) is coronalplane (17).
8. as claim 2,3 or 4 described medical three-way valve, it is characterized in that: flow channels (11) is that liquid bath (16) was set on spool (6), and this cross section of crossing that liquid bath (16) makes spool (6) is notched circle (18).
9. as claim 2,3 or 4 described medical three-way valve, it is characterized in that: flow channels (11) is the hole (19) that a break-through spool (6) is set on spool (6), and the mouth of this hole (19) and mistake liquid passage (3), the passway of advancing medicine passage (1), discharge opeing sense channel (2) are corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009639 CN2829775Y (en) | 2005-07-20 | 2005-07-20 | Medical 3-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009639 CN2829775Y (en) | 2005-07-20 | 2005-07-20 | Medical 3-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2829775Y true CN2829775Y (en) | 2006-10-25 |
Family
ID=37134699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520009639 Expired - Fee Related CN2829775Y (en) | 2005-07-20 | 2005-07-20 | Medical 3-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2829775Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244309B (en) * | 2007-02-08 | 2012-07-18 | 科文迪安有限公司 | Stopcock valve |
| CN103998075A (en) * | 2011-09-21 | 2014-08-20 | 拜耳医疗保健公司 | Continuous multi-fluid pump device, drive and actuation system and method |
| CN106439107A (en) * | 2016-10-31 | 2017-02-22 | 北京派特生物技术有限公司 | Corrosion-resistant plug valve, control device and system for radioactive medicine synthesis |
| US10507319B2 (en) | 2015-01-09 | 2019-12-17 | Bayer Healthcare Llc | Multiple fluid delivery system with multi-use disposable set and features thereof |
-
2005
- 2005-07-20 CN CN 200520009639 patent/CN2829775Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244309B (en) * | 2007-02-08 | 2012-07-18 | 科文迪安有限公司 | Stopcock valve |
| CN103998075A (en) * | 2011-09-21 | 2014-08-20 | 拜耳医疗保健公司 | Continuous multi-fluid pump device, drive and actuation system and method |
| EP2758097A4 (en) * | 2011-09-21 | 2015-07-01 | Bayer Medical Care Inc | Continuous multi-fluid pump device, drive and actuating system and method |
| US9649436B2 (en) | 2011-09-21 | 2017-05-16 | Bayer Healthcare Llc | Assembly method for a fluid pump device for a continuous multi-fluid delivery system |
| US9700672B2 (en) | 2011-09-21 | 2017-07-11 | Bayer Healthcare Llc | Continuous multi-fluid pump device, drive and actuating system and method |
| US10507319B2 (en) | 2015-01-09 | 2019-12-17 | Bayer Healthcare Llc | Multiple fluid delivery system with multi-use disposable set and features thereof |
| US11491318B2 (en) | 2015-01-09 | 2022-11-08 | Bayer Healthcare Llc | Multiple fluid delivery system with multi-use disposable set and features thereof |
| US12201802B2 (en) | 2015-01-09 | 2025-01-21 | Bayer Healthcare Llc | Multiple fluid delivery system with multi-use disposable set and features thereof |
| CN106439107A (en) * | 2016-10-31 | 2017-02-22 | 北京派特生物技术有限公司 | Corrosion-resistant plug valve, control device and system for radioactive medicine synthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061025 |